GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
yuvdenoise(1) MJPEG tools manual yuvdenoise(1)

yuvdenoise - Motion-Compensating-YUV4MPEG2-frame-denoiser

yuvdenoise [options] </dev/stdin >/dev/stdout

yuvdenoise is a spatio-temporal noise-filter for YUV4MPEG2 streams. This is useful to reduce the bitrate needed to encode your captured movies for VCD and SVCD creation.

yuvdenoise accepts the following options:
-g y,u,v [0..255] Gaussian filter thresholds
This sets the thresholds for the gaussian filter. A value of 0 disables filtering for a specific component and 0,0,0 completely disables/bypasses the filter. This filter is applied before the temporal (-t) filter.
(default=0,0,0)

-m y,u,v [0..255] Pre 3D Median filter thresholds
This sets the thresholds for the pre-processing 3D median filter. A value of 0 disables median filtering for a specific component and 0,0,0 completely disables/bypasses the filter. This filter is applied before the temporal (-t) filter.
(default=0,0,0)

-r y,u,v [0..255] Renoising filter thresholds
This sets the thresholds for adding random "noise" back into the video stream. Default is disabled (not adding random noise). This filter, if enabled, is run as the Blast filter (after the median and temporal filters). Reasonable value is 4,8,8 but if you are working with monochrome (black and white movie) then 4,0,0 will speed things up by not processing the chroma planes.
(default=0,0,0)

-t y,u,v [0..255] Temporal noise-filter thresholds
This sets the thresholds for the temporal noise-filter. Values above 12 may introduce ghosting. The default value for Y' (y) is often a little high and reducing it to 4 or 5 may be necessary. If the chroma smears or ghosts try using values of 5 or 6 instead of the default (12). A value of 0 disables temporal filtering for the specified component (0,0,0 disables/bypasses all temporal filtering). Thus for black and white movies 4,0,0 will be faster by not denoising the chroma planes.
(default=4,8,8)

-M y,u,v [0..255] Post 3D Median filter thresholds
This sets the thresholds for the post-processing 3D median filter. A value of 0 disables median filtering for a specific component and 0,0,0 completely disables/bypasses the filter. This filter is applied after the temporal (-t) filter. Reasonable value is 4,8,8 but if you are working with monochrome (black and white movie) then 4,0,0 will speed things up by not processing the chroma planes.
(default=0,0,0)

To Be Written (maybe) in the future.

As it is self-adapting to the noise-situation found in the stream you normally just can go without any options set:

lav2yuv my-video.avi | yuvdenoise | mpeg2enc -t 1 -o my-video.m1v

This man page was written by Stefan Fendt <stefan@lionfish.ping.de> and revised by Steven Schultz.

If you have questions, remarks, problems or you just want to contact the developers, the main mailing list for the MJPEG-tools is:

mjpeg-users@lists.sourceforge.net

For more info, see our website at

http://mjpeg.sourceforge.net/

mjpegtools(1), mpeg2enc(1) lavrec(1) lav2yuv(1)
11th August 2005 MJPEG Tools Team

Search for    or go to Top of page |  Section 1 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.